Bisul tree

Ulmus pumila

Ulmus pumila is a tree with the following growth characteristics:

Growth Characteristics
- Size: Mature trees can grow to a height of approximately 10 to 20 meters and form a broad crown.
- Leaves: The leaves are ovate-elliptical; the surface is smooth, while the underside is light in color.
- Tolerance: It possesses strong cold and drought tolerance, allowing it to thrive in a variety of environments.

Propagation Methods
- Seeds: It can be propagated by sowing seeds in the spring. Seeds are harvested in the autumn, and applying a slight cold treatment (refrigeration) before sowing increases the germination rate.
- Grafting: Grafting is also used for commercial propagation.

Cultivation Methods
- Soil: It prefers well-drained sandy loam but adapts to various soil conditions.
- Sunlight: It grows better with more sunlight. While it can grow in partial shade, a location with abundant sunlight is ideal for optimal growth. - Water Management: Although it grows quickly, it thrives more vigorously in well-drained soil. It is best to avoid overwatering.

Uses in Gardens
- Landscaping Tree: The Japanese zelkova is widely used as a landscaping tree to provide shade.
- Windbreak: It is also suitable as a windbreak to block strong winds.
- Boundary Tree: It is useful for shaping the landscape and marking boundaries.

Important Pests and Control Methods
- Diseases: It is susceptible to Dutch Elm Disease, so caution is required in affected areas.
- Control: For preventive control, it is important to maintain healthy trees and remove infected trees early.
- Pests: Small moths and twisters are the primary attackers, so periodic monitoring is necessary.
- Control: Damage can be reduced by using insecticides at the right time, and utilizing natural predators can also be helpful.

The Japanese zelkova pumila is widely used for landscaping and environmental protection purposes due to its ability to adapt to various environments. However, it is important to maintain healthy growth by paying attention to pest and disease prevention.

Plant Family	Elm family
Height	15~20m
Colors	red
Bloom Period	March to April
Water Needs	commonly
Exposure	Sunny
Freezing Resistance	-40°C

Chinese elm 'Seijū'
Ulmus parvifolia 'Seiju'

Rock sedum opocitifolius
Umbilicus oppositifolius